Addition to 20
Subtraction from 20
Adding groups of ten
Number Stories
Double digit addition
100

7+6=

13

100

10-3=

7

100

45+10

55

100

Mrs. Guarino had 12 candy canes. Her friend gave her 7 more. How many did she have all together?

19 candy canes

100

22+46=

68

200

8+6=

14

200

12-6=

6

200

35+30=

65

200

Mrs. Amato had 13 pies. Her dog Boomer ate 6. How many does she have left?

7 cookies

200

42+43=

85

300

9+5=

14

300

18-10=

8

300

43+20=

63

300

Ms. Silverstein baked 16 chocolate chip cookies and 10 sugar cookies. Her class ate 14. How many does she have left?

12 cookies 

300

73+27=

100

400

8+9=

17

400

19-8=

11

400

60+22=

82

400

Miss Gashler bought 12 dog toys at Petco and 12 dog toys at BJ's. She wrapped 20. How many more does she have to wrap?

4 dog toys

400

56+35

91

500

9+9=

18

500

20-12=

8

500

40+45=

85

500

Mrs. Martin bought 25 Christmas candles at Marshalls. She gave 7 to her friend Alice. She gave 9 to her friend Tasha. How many candles does she have left?

9 candles

500

79+15=

94

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